/*
 * Licensed to The Apereo Foundation under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.
 *
 *
 * The Apereo Foundation licenses this file to you under the Educational
 * Community License, Version 2.0 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of the License
 * at:
 *
 *   http://opensource.org/licenses/ecl2.txt
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations under
 * the License.
 *
 */

package org.opencastproject.statistics.api;

/**
 * Register or unregister statistics providers.
 */
public interface StatisticsCoordinator {
  /**
   * Add the given provider to the list of active providers.
   *
   * @param provider
   *          The provider to add.
   */
  void addProvider(StatisticsProvider provider);

  /**
   * Remove the given provider from the list of active providers.
   *
   * @param provider The provider to remove.
   */
  void removeProvider(StatisticsProvider provider);

  /**
   * Add a new writer instance
   * @param writer the writer instance
   */
  void addWriter(StatisticsWriter writer);

  /**
   * Remove a writer
   * @param id the writer's ID
   */
  void removeWriter(String id);

}
